参数化JMeter HTTP中的POST体

Question

我正在使用Apache为我们开发的应用程序运行一些针对RESTFUL的性能测试。我有一个端点“api/create/empList作业”，它基本上在MongoDB中添加了一个或多个雇员记录。POST调用的有效负载如下所示：

{
        "employeeList": [
            {
                "first_name": "josh",
                "last_name": "don",
                "age": "25",
                "address": {
                    "street1": "xyz",
                    "street2": "apt-10",
                    "city" : "def",
                    "state" : "CA",
                    "zip" : "95055"
                },
                "deptType": {
                    "deptID": "1",
                    "deptName": "R&D"
                }
            },
            {
                "first_name": "mary",
                "last_name": "jane",
                "age": "22",
                "address": {
                    "street1": "zzz",
                    "street2": "apt-15",
                    "city" : "yyy",
                    "state" : "CA",
                    "zip" : "95054"
                },
                "deptType": {
                    "deptID": "2",
                    "deptName": "HR"
                }
            }
        ]
    }

如您所见，有效负载接收员工数据列表，并且至少应该有一条员工记录。我有一个要求，希望JMeter线程组有10个线程，每个线程都应该并发发布到“api/create/empList作业”，这样主体就有10个唯一的员工记录，从而总共创建了100个记录。我能参数化有效载荷的最好方法是什么？

Answer 1

看看JMeter函数，比如：

• threadNum() -返回当前线程的数目(虚拟用户)
• 随机() -返回给定范围内的随机数
• RandomString() -从指定的输入字符返回随机字符串。
• UUID() -返回随机GUID结构

因此，例如，如果您将JSON有效负载更改为：

"employeeList": [
  {
      "first_name": "josh-${__threadNum}",
      "last_name": "don-${__threadNum}",
      "age": "25",
      "address": {
          "street1": "xyz",
          "street2": "apt-10",
          "city" : "def",
          "state" : "CA",
          "zip" : "95055"
      },
      "deptType": {
          "deptID": "1",
          "deptName": "R&D"
      }
  },
  {
      "first_name": "mary-${__threadNum}",
      "last_name": "jane-${__threadNum}",
      "age": "22",
      "address": {
          "street1": "zzz",
          "street2": "apt-15",
          "city" : "yyy",
          "state" : "CA",
          "zip" : "95054"
      },
      "deptType": {
          "deptID": "2",
          "deptName": "HR"
      }
  }
]
}

JMeter将创建：

- `josh-1` for 1st virtual user
- `josh-2` for 2nd virtual usre
- etc.

请参阅Apache JMeter函数-简介以熟悉JMeter函数的概念。